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All Journal Jurnal Matematika & Sains Bulletin of Chemical Reaction Engineering & Catalysis The Journal of Pure and Applied Chemistry Research Journal of Mathematical and Fundamental Sciences Journal of Engineering and Technological Sciences World Chemical Engineering Journal EduChemia: Jurnal Kimia dan Pendidikan PENELITIAN DAN KARYA ILMIAH PROSIDING SEMINAR NASIONAL CENDEKIAWAN Indonesian Journal of Chemistry Prosiding Seminar Nasional Pakar CHEESA: Chemical Engineering Research Articles JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Tedc Jurnal Penelitian dan Karya Ilmiah Lembaga Penelitian Universitas Trisakti Bulletin of Chemical Reaction Engineering & Catalysis al Kimiya : Jurnal Ilmu Kimia dan Terapan
Deana Wahyuningrum
Institut Teknologi Bandung
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Journal : Journal of Mathematical and Fundamental Sciences

 1 
The Synthesis of Imidazoline Derivative Compounds as Corrosion Inhibitor towards Carbon Steel in 1% NaCl Solution Deana Wahyuningrum; Sadijah Achmad; Yana Maolana Syah; Buchari Buchari; Bambang Ariwahjoedi
Journal of Mathematical and Fundamental Sciences Vol. 40 No. 1 (2008)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.sci.2008.40.1.4

Abstract

Oleic imidazoline is one of the nitrogen containing heterocyclic compounds that has been widely used as commercial corrosion inhibitor, especially in minimizing the carbon dioxide induced corrosion process in oilfield mining. In this present work, some imidazoline derivative compounds have been synthesized utilizing both conventional and microwave assisted organic synthesis (MAOS) methods, in order to determine their corrosion inhibition properties on carbon steel surface. The MAOS method is more effective in synthesizing these compounds than the conventional method regarding to the higher chemical yields of products (91% to 94%) and the shorter reaction times (7 to 10 minutes). The characterization of corrosion inhibition activities of the synthesized products towards carbon steel in 1% NaCl solution was determined by the Tafel plot method. The corrosion inhibition activities of compound 1b ((Z)-2-(2-(heptadec-8-enyl)-4,5-dihydroimidazol-1-yl)ethanamine), 2b ((Z)-2-(2-(heptadec-8-enyl)-4,5-dihydroimidazol-1-yl)ethanol) and 3b (2-(2-heptadecyl-4,5-dihydroimidazol-1-yl)ethanamine) at 8 ppm concentration in 1% NaCl solution are, respectively, 32.18%, 39.59% and 12.73%. The heptadec-8-enyl and hydroxyethyl substituents at C(2) and N(1) position of imidazoline ring, respectively, gave the most effective corrosion inhibition activity towards carbon steel compared to the presence of other substituents. The increase in concentrations of compound 1b, 2b and 3b in 1% NaCl solution tends to improve their corrosion inhibition activities. Based on the analysis of the free Gibbs adsorption energy (ÄG0ads) values of compound 1b, 2b and 3b (-32.97, -34.34 and -31.27 kJ/mol, respectively), these compounds have the potential to interact with carbon steel through semi-physiosorption or semi-chemisorption.
Synthesis of Oligosuccinimide and Evaluation of Its Corrosion Inhibition Performance on Carbon Steel in CO2-Saturated 1% NaCl Solution Muhamad Jalil Baari; Bunbun Bundjali; Deana Wahyuningrum
Journal of Mathematical and Fundamental Sciences Vol. 52 No. 2 (2020)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2020.52.2.5

Abstract

Oligosuccinimide (OSI) is an oligomer with several repeating units of succinimide. In this study, OSI was synthesized by thermal condensation between maleic anhydride and ammonium carbonate. The chemical structure of the synthesized compound was confirmed by FTIR and NMR spectroscopy as well as LC-MS characterization. Evaluation of its performance as corrosion inhibitor and the adsorption mechanism on a carbon steel surface in CO2-saturated 1% (w/v) NaCl solution was performed using electrochemical techniques (electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization) and weight-loss methods. These tests were simultaneously carried out for all fractions without separation. The EIS results showed that the inhibition efficiency (IE) of the OSI increased with increasing concentration but decreased at higher temperatures. The potentiodynamic polarization data indicated that the OSI acted as a mixed inhibitor. Adsorption of OSI on the carbon steel generally obeys the Langmuir adsorption isotherm according to curve linearity, which relates the degree of surface coverage to the inhibitor concentration. The standard Gibbs free energy of the adsorption values (∆G° ads) were negative within the range of -33.14 to -38.73 kJ.mol-1, which indicates the spontaneity of the adsorption process on the carbon steel surface and that OSI molecules interacted with the carbon steel through semi-physisorption.
Co-Authors Bambang Ariwahjoedi Buchari Buchari Bunbun Bundjali Bunbun Bundjali Bunbun Bundjali Bunbun Bundjali Bunbun Bundjali Cynthia Linaya Radiman Cynthia Linaya Radiman Damar Nurwahyu Bima Dian Asfriany Nurfalah Doddy Abdassah Herayati, Herayati I Made Arcana I Made ARCANA I Made Arcana I Putu Parwata Irma Mulyani Irma Mulyani Irma Nuril Maryam Iwan Syahjoko Saputra Khusna Widhyahrini Lucy Arianie M. Taufik Fathaddin M. Taufik Fathaddin, M. Taufik Muhamad Jalil Baari Muhammad Ali Zulfikar Ndruru, Sun Theo Constan Lotebulo Ni Ketut Ketis Nila Tanyela Berghuis Nora Idiawati Novriana Sumarti Nuning Nuraini Nurrahmi Handayani Pertiwi, Annisa Mustika Rani Kurnia Rani Kurnia Rini Setiati RUKMAN HERTADI Sadijah Achmad Sadijah Achmad Santi Nurbaiti Septoratno Siregar Septoratno Siregar Septoratno Siregar Sony Suhandono Sugiatmo Kasmungin Sun Theo Constan Lotebulo Ndruru Sun Theo Constan Lotebulo Ndruru Taufan Marhaendrajana Taufan Marhaendrajana, Taufan Tikarahayu Putri Utin Dewi Pebriyana Utjok W.R Siagian Yana Maolana Syah Yudiansyah Yudiansyah Yuliana, Cut Yulyani Nur Azizah